Observation of quantum coherence in mesoscopic molecular magnets

被引：67

作者：

Luis, F

Mettes, FL

Tejada, J

Gatteschi, D

de Jongh, LJ

机构：

[1] Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands

[2] Univ Barcelona, Dept Fis Fonamental, E-08028 Barcelona, Spain

[3] Univ Florence, Dept Chem, I-50144 Florence, Italy

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.85.4377

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By applying a transverse magnetic field B-perpendicular to of sufficient strength to the uniaxial molecular magnets Fe-8 and Mn-12, the tunneling splitting Delta (t) of their S = +/-10 magnetic ground states can be made large compared to perturbations such as hyperfine and dipolar interactions. We present evidence for such a Delta (t) from magnetic specific heat data below 1 K that is consistent with coherent quantum mechanical tunneling in a "mesoscopic" system under such conditions.

引用

收藏

页码：4377 / 4380

页数：4

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